From Longman Dictionary of Contemporary Englishgonadgo‧nad /ˈɡəʊnæd $ ˈɡoʊ-/ noun [countable] technicalMBHB the male or female sex organ in which the sperm or eggs are produced
Examples from the Corpus
gonad• Number one I d aim a boot at his gonads.• When the creature matures, the parasitic sperm cells eat out its gonads and replace them with themselves.• Most but not all have their male gonads removed-without explanation.Origin gonad (1800-1900) Modern Latin Greek gonos “seed” 